# Retime vs Stackd

The clearest difference is ads: Stackd at none against Retime's shown. Retime's advantage is update cadence (every 5 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Retime sells 3 in-app purchases, starting at $1.99 per month and Stackd sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Retime ships an update every 5 days, Stackd fortnightly. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Retime | Stackd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/retime-study-timer-and-planner/id6736560691/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 3 MB |
| Requires iOS | **17.0** | 18 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Iida](https://appshunter.io/developer/1506522991) | [Nene Nakagawa](https://appshunter.io/developer/1821103094) |

## What reviewers say

### Retime

[App page](https://appshunter.io/ios/app/retime-study-timer-and-planner/id6736560691)

This app helps serious learners manage their study time and track progress. It combines a timer, task management, and analytics to visualize daily efforts and ensure goals are met. Features include goal setting, exam countdowns, and app blocking to enhance focus.

**Highlights:** Unified task management and timer, Study goal progress tracking, Exam countdown and score tracking, Distracting app blocking, Pomodoro and count-up timer modes, Study time visualization, Customizable subjects and themes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| リタイム PRO 1ヶ月 | $1.99 | per month |
| リタイム PRO 1年間 キャンペーン | $19.99 | per year |
| リタイム PRO 1年間 | $19.99 | per year |


### Stackd

[App page](https://appshunter.io/ios/app/stackd-study-timer-and-tracker/id6761293821)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackd Pro | $1.99 | one-time |


## Frequently asked questions

### Is Retime free?

Retime is free to download, with in-app purchases available.

### Is Stackd free?

Stackd is free to download, with in-app purchases available.

### Do Retime or Stackd have ads?

Retime shows ads; Stackd does not.

### Which is updated more often, Retime or Stackd?

Retime ships an update every 5 days, and Stackd fortnightly. Most recently, Retime was updated on September 23, 2026 and Stackd on September 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*